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When you want to reduce the color unevenness
Check the check box of [Color unevenness reduction] on the [Image
control] tab to reduce the color unevenness.
You can control the level of color unevenness by enabling the
[Setting] button.
When you want to make lines and text in scanned images
thicker or thinner
Drag the [Character Emphasis] slider in the [Image processing] tab to
make lines and text in the scanned images thicker or thinner.
When you want to enhance text that is difficult to read
because of factors such as the background of the
scanned document
Select [Advanced Text Enhancement] or [Advanced Text
Enhancement II] in the mode setting on the [Basic] tab. The
background behind the text is removed or processed so that the text
is emphasized for better readability.